Celebrating Reformation Day by Nathan BusenitzToday marks one of my favorite holidays.No, I’m not referring to Halloween.I’m talking about Reformation Day — which is celebrated on October 31, and which commemorates the day on which Martin Luther nailed his 95 theses to the Wittenberg church door in 1517.Reformation Day is not only celebrated here in the United States by a number of evangelical denominations, it is also an official holiday in parts of Germany and a couple other countries around the world.